>3zkn_H mol:protein length:221 FAB HEAVY CHAIN
QVQLKESGPVLVAPSQSLFISCTVSGFSLTRYGVHWVRQSPGKGLEWLGVIWAGGTTNYNSAFMSRLTISKDNSKSQVFLKMNSLQTDDTAIYYCVKAYRNAMDYWGQGTSVTVSSAKTTAPSVYPLAPVCGDTSGSSVTLGCLVKGYFPEPVTLTWNSGSLSSGVHTFPAVLQSDLYTLSSSVTVTSSTWPSQSITCNVAHPASSTKVDKKIEPRGPTIK